Device for reducing emission of excrement storage gas

Abstract

The invention provides an excrement storage gas emission reduction device, and belongs to the technical field of excrement treatment devices.The excrement storage gas emission reduction device comprises a storage tank and a photocatalysis device arranged on one side of the storage tank, a gas conveying pipe is installed on the inner wall of the side, close to the photocatalysis device, of the storage tank, and a feeding pipe is installed on the inner wall of the side, away from the gas conveying pipe, of the storage tank. According to the invention, greenhouse gas methane and irritant gas ammonia gas generated in the excrement storage process are catalyzed into nitrogen, carbon dioxide and water through photocatalysis, and the nitrogen, the carbon dioxide and the water are discharged, so that the emission of the greenhouse gas and the irritant gas is reduced, and the emission reduction of the gas in the excrement storage process is realized; the driving stirring rollers on the two side walls of the fixing frame rotate around the main shaft and rotate at the same time, the excrement in the storage tank is stirred, layering of the excrement in a static state is prevented, microorganisms and nutrient substances in the excrement are distributed more evenly, the microorganisms in the excrement can fully degrade and digest the nutrient substances, and the excrement is prevented from being decomposed and decomposed. Therefore, efficient cyclic utilization of resources is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of manure treatment devices, and in particular to a manure storage gas emission reduction device. Background Art

[0002] In recent years, with the increase in the scale and intensiveness of livestock and poultry farming, the amount of manure generated has increased significantly, but the comprehensive utilization rate and harmlessness rate are relatively low. According to statistics, the annual production of livestock and poultry manure in my country is about 3.8 billion tons, while the comprehensive utilization rate and harmlessness rate are less than 60% and 50%, respectively. This not only causes waste of resources, but also brings serious environmental problems. For example, the nitrogen in manure mainly volatilizes in the form of ammonia, causing odor and air pollution. At the same time, manure also releases greenhouse gases such as methane during storage and treatment, exacerbating global climate change.

[0003] In the prior art, in traditional manure treatment methods, such as composting and anaerobic fermentation, although manure can be treated to a certain extent, the gas emission control during the treatment process is insufficient, and is often accompanied by the generation of a large amount of odorous gas and greenhouse gas, which not only pollutes the environment but also poses a threat to human health. How to invent a manure storage gas emission reduction device to solve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a device for reducing gas emissions from manure storage, aiming to solve the problem that traditional manure treatment methods are accompanied by the generation of a large amount of malodorous gases and greenhouse gases.

[0005] The present invention is achieved in that: The present invention provides a device for reducing gas emissions from manure storage, comprising a storage tank and a photocatalytic device arranged on one side of the storage tank, a gas pipeline is installed on the inner wall of the storage tank close to the photocatalytic device, a feeding pipe is installed on the inner wall of the storage tank away from the gas pipeline, a feeding pipe is installed on the inner wall of the lower end of the storage tank, a feeding pipe is installed on the inner wall of the upper end of the storage tank, a motor is installed on the upper end of the storage tank, a fixing sleeve is installed on the inner wall of the top end of the storage tank, and a main shaft is installed on the inner wall of the storage tank; The outer wall of the main shaft is rotatably connected to the inner wall of the fixed sleeve, a second bevel gear is installed on the outer side of the main shaft, two symmetrical connecting rods are installed on the side wall of the bottom end of the main shaft, one end of the two connecting rods is respectively installed with a fixing ring, and both ends of the fixing ring are respectively installed with a fixing frame; The fixed frames between the two fixed rings are symmetrical, a first transmission wheel is installed on the inner wall of one end of the fixed frame, active stirring rollers are installed at both ends of the first transmission wheel, a first bevel gear is installed on the outer wall between the two fixed frames, second transmission wheels are installed at both ends of the first bevel gear, and a transmission belt is installed between the second transmission wheel and the first transmission wheel.

[0006] Preferably, the gas pipeline transports the fecal waste gas in the storage tank to a photocatalytic device on one side, and the photocatalytic device processes the waste gas to reduce emissions.

[0007] Preferably, solenoid valves are installed on the feeding pipe, the feeding pipe and the adding pipe, the adding pipe is connected to an external inorganic acid pipeline, one end of the fixing sleeve is fixedly connected to the inner wall of the storage tank, and the output end of the motor is fixedly connected to one end of the main shaft.

[0008] By adopting the above technical scheme, the gas generated during the storage of manure enters the photocatalytic device through the gas pipe, and the greenhouse gas methane and the irritating gas ammonia are catalyzed into nitrogen, carbon dioxide and water through photocatalysis and discharged, thereby reducing the emission of greenhouse gases and irritating gases and achieving gas emission reduction during the storage of manure. At the same time, the active stirring roller at the bottom of the fixed frame stirs the manure in the storage tank to prevent stratification of manure in a static state, thereby improving the efficiency of anaerobic digestion.

[0009] Preferably, the outer wall of the main shaft is rotatably connected to the inner wall of the second bevel gear, the second bevel gear is meshingly connected to the first bevel gear, the two ends of the first transmission wheel are rotatably connected to the inner wall of the fixed frame, and the two active stirring rollers are respectively fixed at the two ends of the first transmission wheel.

[0010] Preferably, both ends of the first bevel gear are fixedly connected to the second transmission wheel, the outer wall of the second transmission wheel is rotatably connected to the inner wall of the fixed frame, and the second transmission wheel and the first transmission wheel are connected via a transmission belt.

[0011] Preferably, a connecting sleeve is installed on the side wall of the fixing sleeve, a rotatably connected fixing gear is installed on one end of the connecting sleeve, and an outer gear ring is installed on the upper side wall of the main shaft close to the second bevel gear.

[0012] Preferably, a mounting groove is provided at the upper end of the second bevel gear, an inner gear ring is installed on the inner wall of the mounting groove, the inner gear ring is meshingly connected to the fixed gear, and the fixed gear is meshingly connected to the outer gear ring.

[0013] By adopting the above technical scheme, in the process of the fixed frame driving the active stirring roller to rotate around the main shaft, the active stirring roller on the side wall of the bottom end of the fixed frame rotates, so that during the stirring process, the outer blades are used to stir the fixed manure and sewage at the bottom upward, further avoiding the stratification of manure and sewage, and improving the effect of anaerobic digestion. While the main shaft rotates, the outer gear ring below engages with the fixed gear to rotate, and the fixed gear engages with the inner gear ring to drive the entire second bevel gear to rotate, so that the rotation directions of the second bevel gear and the main shaft are opposite, and the speed of the first bevel gear and the active stirring roller is increased, so that the active stirring roller has greater power to lift the heavier manure and sewage in the lower layer upward when rotating, and can quickly and evenly mix with the manure and sewage in the upper layer, further improving the stirring effect, making the manure and sewage mixed more evenly, thereby achieving better anaerobic digestion of manure and sewage and efficient recycling of resources.

[0014] A stirring plate is fixedly connected between the side walls of the two fixed frames near the lower ends. A through groove is opened on the stirring plate. A plurality of driven stirring rollers are rotatably connected to the inner wall of the through groove. A pH meter is installed under one of the stirring plates.

[0015] A temperature and humidity sensor is installed on the inner wall of the storage tank, and an intelligent controller is installed on the outer wall of the storage tank. The intelligent controller collects measurement data of the temperature and humidity sensor and the acid-base meter through a wireless transmission module.

[0016] By adopting the above technical solution, the stirring plate installed at the bottom of the fixed frame can stir the position that the active stirring roller cannot cover during the stirring process, and the flowing feces and sewage can further stir the flowing feces and sewage when passing through the through groove, thereby improving the stirring effect.

[0017] The beneficial effects of the present invention are: The gases generated during the storage of manure and sewage are catalyzed into nitrogen, carbon dioxide and water through photocatalysis, thereby reducing the emission of greenhouse gases and irritating gases, achieving gas emission reduction during the storage of manure and sewage, reducing pollution to the surrounding environment and keeping the surrounding air fresh; The motor controls the main shaft to rotate, driving the active stirring rollers on both sides of the bottom fixed frame to rotate around the main shaft, stirring the manure in the storage tank to prevent stratification in a static state, making the microorganisms and nutrients in the manure more evenly distributed, avoiding local concentrations that are too high or too low, improving the efficiency of anaerobic digestion, and allowing the microorganisms in the manure to fully degrade and digest the nutrients, converting the organic matter in the manure into valuable resources, thereby achieving efficient recycling of resources; The two bevel gears on the outside of the main shaft cooperate with each other to drive the active stirring roller on the bottom side wall of the fixed frame to rotate, so that during the stirring process, the outer blades are used to stir the fixed manure at the bottom upward, further avoiding the stratification of manure, improving the effect of anaerobic digestion, and making the manure more evenly mixed, thereby achieving better anaerobic digestion of manure and efficient recycling of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of a device for reducing gas emissions from manure storage provided by an embodiment of the present invention; Figure 2 This is a cross-sectional view of a storage tank structure of a device for reducing gas emissions from manure storage provided by an embodiment of the present invention; Figure 3 It is a half-section diagram of a storage tank structure of a device for reducing gas emissions from manure storage provided by an embodiment of the present invention; Figure 4 A device for reducing gas emissions from manure storage provided by an embodiment of the present invention Figure 3 A magnified view of the structure of the middle A area; Figure 5 It is a schematic diagram of a stirring assembly of a device for reducing gas emissions from manure storage provided by an embodiment of the present invention; Figure 6 It is a partial cross-sectional view of a stirring assembly of a device for reducing gas emissions from manure storage provided by an embodiment of the present invention; Figure 7 A device for reducing gas emissions from manure storage provided by an embodiment of the present invention Figure 6 A magnified view of the structure of the middle B region; Figure 8 A device for reducing gas emissions from manure storage provided by an embodiment of the present invention Figure 6 Enlarged view of the structure of the middle C region.

[0020] In the figure: 1. Storage tank; 11. Gas pipe; 12. Feeding pipe; 13. Discharging pipe; 14. Adding pipe; 15. Fixed sleeve; 151. Connecting sleeve; 152. Fixed gear; 16. Motor; 17. Temperature and humidity sensor; 18. Intelligent controller; 2. Photocatalytic device; 3. Main shaft; 31. Connecting rod; 32. Fixed ring; 33. External gear ring; 4. Fixed frame; 41. First transmission wheel; 42. Active stirring roller; 5. First bevel gear; 51. Second transmission wheel; 52. Transmission belt; 6. Second bevel gear; 61. Mounting groove; 62. Inner gear ring; 7. Stirring plate; 71. Through groove; 72. Driven stirring roller; 8. Acid-base measuring meter. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example, see Figure 1-Figure 8 A device for reducing gas emissions from manure storage includes a storage tank 1 and a photocatalytic device 2 arranged on one side of the storage tank 1, a gas pipe 11 is installed on the inner wall of the storage tank 1 close to the photocatalytic device 2, a feeding pipe 12 is installed on the inner wall of the storage tank 1 away from the gas pipe 11, a feeding pipe 13 is installed on the inner wall of the lower end of the storage tank 1, an adding pipe 14 is installed on the inner wall of the upper end of the storage tank 1, a motor 16 is installed on the upper end of the storage tank 1, a fixing sleeve 15 is installed on the inner wall of the top end of the storage tank 1, and a main shaft 3 is installed on the inner wall of the storage tank 1; The outer wall of the main shaft 3 is rotatably connected to the inner wall of the fixed sleeve 15. A second bevel gear 6 is installed on the outer side of the main shaft 3. Two symmetrical connecting rods 31 are installed on the bottom side wall of the main shaft 3. A fixing ring 32 is installed at one end of the two connecting rods 31. A fixing frame 4 is installed at both ends of the fixing ring 32. The fixed frames 4 between the two fixed rings 32 are symmetrical in pairs, and a first transmission wheel 41 is installed on the inner wall of one end of the fixed frame 4, and active stirring rollers 42 are installed at both ends of the first transmission wheel 41. A first bevel gear 5 is installed on the outer wall between the two fixed frames 4, and second transmission wheels 51 are installed at both ends of the first bevel gear 5. A transmission belt 52 is installed between the second transmission wheel 51 and the first transmission wheel 41.

[0023] Furthermore, the gas pipe 11 transports the fecal gas in the storage tank 1 to the photocatalytic device 2 on one side, and the photocatalytic device 2 processes and reduces the exhaust gas. Solenoid valves are installed on the loading pipe 12, the unloading pipe 13, and the adding pipe 14. The adding pipe 14 is connected to the external inorganic acid pipeline, one end of the fixed sleeve 15 is fixedly connected to the inner wall of the storage tank 1, and the output end of the motor 16 is fixedly connected to one end of the main shaft 3.

[0024] It should be noted that: when storing manure, the manure is put into the storage tank 1 through the feeding pipe 12, and the manure can be discharged through the discharge pipe 13 later. The gas generated during the storage of manure enters the photocatalytic device 2 through the gas pipe 11, and the greenhouse gas methane and the irritating gas ammonia are catalyzed into nitrogen, carbon dioxide and water through photocatalysis and discharged, thereby reducing the emission of greenhouse gases and irritating gases, achieving gas emission reduction during the storage of manure, reducing pollution to the surrounding environment while keeping the surrounding air fresh.

[0025] During the storage of manure, the motor 16 controls the main shaft 3 to rotate, and during the rotation, drives the fixed frame 4 on the outer side of the bottom to rotate, so that the active stirring rollers 42 on the two side walls of the bottom end of the fixed frame 4 rotate around the main shaft 3, stirring the manure in the storage tank 1, preventing the manure from stratifying in a static state, making the distribution of microorganisms and nutrients in the manure more even, avoiding local concentrations that are too high or too low, improving the efficiency of anaerobic digestion, and allowing the microorganisms in the manure to fully degrade and digest the nutrients, converting the organic matter in the manure into valuable resources, thereby achieving efficient recycling of resources.

[0026] Further; the outer wall of the main shaft 3 and the inner wall of the second bevel gear 6 are rotatably connected, the second bevel gear 6 and the first bevel gear 5 are meshed and connected, the two ends of the first transmission wheel 41 are rotatably connected to the inner wall of the fixed frame 4, the two active stirring rollers 42 are respectively fixed at the two ends of the first transmission wheel 41, the two ends of the first bevel gear 5 are fixedly connected to the second transmission wheel 51, the outer wall of the second transmission wheel 51 and the inner wall of the fixed frame 4 are rotatably connected, the second transmission wheel 51 and the first transmission wheel 41 are transmission connected by a transmission belt 52, the side wall of the fixed sleeve 15 is installed with a connecting sleeve 151, and one end of the connecting sleeve 151 is installed with a rotatably connected fixed gear 152, the upper side wall of the main shaft 3 close to the second bevel gear 6 is installed with an outer gear ring 33, the upper end of the second bevel gear 6 is provided with a mounting groove 61, the inner wall of the mounting groove 61 is installed with an inner gear ring 62, the inner gear ring 62 and the fixed gear 152 are meshed and connected, and the fixed gear 152 and the outer gear ring 33 are meshed and connected.

[0027] It should be noted that: in the process of the fixed frame 4 driving the active stirring roller 42 to rotate around the main shaft 3, the first bevel gear 5 between the two fixed frames 4 meshes with the second bevel gear 6 to rotate, and the active stirring roller 42 on the bottom side wall of the fixed frame 4 is driven to rotate by itself under the cooperation of the transmission wheel and the transmission belt 52, so that during the stirring process, the fixed feces and sewage at the bottom are stirred upward by the outer blades, further avoiding the stratification of feces and sewage, and improving the effect of anaerobic digestion; While the main shaft 3 is rotating, the outer gear ring 33 below engages with the fixed gear 152 to rotate, and the fixed gear 152 engages with the inner gear ring 62 to drive the entire second bevel gear 6 to rotate, so that the second bevel gear 6 and the main shaft 3 rotate in opposite directions, thereby increasing the speed of the first bevel gear 5 and the active stirring roller 42, so that the active stirring roller 42 has greater power to lift the heavier manure and sewage on the lower layer upward when rotating, and can quickly mix it evenly with the manure and sewage on the upper layer, further improving the stirring effect, making the manure and sewage mixed more evenly, thereby achieving better anaerobic digestion of manure and sewage and efficient recycling of resources.

[0028] Furthermore, a stirring plate 7 is fixedly connected between the side walls of the two fixed frames 4 near the lower ends, and a through groove 71 is opened on the stirring plate 7. The inner wall of the through groove 71 is rotatably connected with a plurality of driven stirring rollers 72. A pH meter 8 is installed under one of the stirring plates 7, a temperature and humidity sensor 17 is installed on the inner wall of the storage tank 1, and an intelligent controller 18 is installed on the outer wall of the storage tank 1. The intelligent controller 18 collects measurement data of the temperature and humidity sensor 17 and the pH meter 8 through a wireless transmission module.

[0029] It should be noted that the stirring plate 7 installed at the bottom of the fixed frame 4 can stir the position that the active stirring roller 42 cannot cover during the stirring process, so that the feces and sewage near the middle position of the storage tank 1 can also be well mixed, thereby ensuring that the feces and sewage in the storage tank 1 can be mixed without dead angles. When the stirring blade rotates, the flowing feces and sewage will contact and collide with the driven stirring roller 72 when passing through the through groove 71, so that the driven stirring roller 72 can further stir the feces and sewage flowing through while rotating, thereby improving the stirring effect and achieving better anaerobic reaction. The temperature and humidity sensor 17 and the acid-base meter 8 monitor the storage status of feces in real time to prevent excessively high or low temperatures from affecting the activity of microorganisms. At the same time, too low humidity will cause the death of microorganisms and reduce the fluidity of feces. When the temperature and humidity are unqualified, the intelligent controller 18 will promptly issue an alarm and adjust the storage conditions of feces in time. At the same time, the acid-base meter 8 determines the pH value of feces. When the pH value is too high, the system will react and control the addition pipe 14 to add inorganic acid to the storage tank 1. Acidification of feces can inhibit the generation of malodorous gases, reduce the emission of malodorous gases, and achieve stable operation of the entire feces emission reduction system.

[0030] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for reducing gas emissions from manure storage, comprising a storage tank (1) and a photocatalytic device (2) arranged on one side of the storage tank (1), characterized in that: An air delivery pipe (11) is installed on the inner wall of the storage tank (1) on the side close to the photocatalytic device (2), a loading pipe (12) is installed on the inner wall of the storage tank (1) on the side away from the air delivery pipe (11), a loading pipe (13) is installed on the inner wall of the lower end of the storage tank (1), an adding pipe (14) is installed on the inner wall of the upper end of the storage tank (1), a motor (16) is installed on the upper end of the storage tank (1), a fixing sleeve (15) is installed on the inner wall of the top end of the storage tank (1), and a main shaft (3) is installed on the inner wall of the storage tank (1); The outer wall of the main shaft (3) and the inner wall of the fixed sleeve (15) are rotatably connected, a second bevel gear (6) is installed on the outer side of the main shaft (3), two symmetrical connecting rods (31) are installed on the bottom side wall of the main shaft (3), one end of the two connecting rods (31) is respectively installed with a fixing ring (32), and both ends of the fixing ring (32) are respectively installed with a fixing frame (4); The fixed frames (4) between the two fixed rings (32) are symmetrical in pairs; a first transmission wheel (41) is mounted on the inner wall of one end of the fixed frame (4); active stirring rollers (42) are mounted on both ends of the first transmission wheel (41); a first bevel gear (5) is mounted on the outer wall between the two fixed frames (4); second transmission wheels (51) are mounted on both ends of the first bevel gear (5); and a transmission belt (52) is mounted between the second transmission wheel (51) and the first transmission wheel (41).

2. The device for reducing gas emissions from manure storage according to claim 1, characterized in that: The gas transmission pipe (11) transmits the waste gas in the storage tank (1) to the photocatalytic device (2) on one side, and the photocatalytic device (2) processes the waste gas to reduce emissions.

3. The device for reducing gas emissions from manure storage according to claim 2, characterized in that: The feeding pipe (12), the feeding pipe (13), and the adding pipe (14) are all equipped with electromagnetic valves; the adding pipe (14) is connected to an external inorganic acid pipeline; one end of the fixing sleeve (15) is fixedly connected to the inner wall of the storage tank (1); and the output end of the motor (16) is fixedly connected to one end of the main shaft (3).

4. The device for reducing gas emissions from manure storage according to claim 1, characterized in that: The outer wall of the main shaft (3) is rotatably connected to the inner wall of the second bevel gear (6), the second bevel gear (6) is meshingly connected to the first bevel gear (5), the two ends of the first transmission wheel (41) are rotatably connected to the inner wall of the fixed frame (4), and the two active stirring rollers (42) are respectively fixed to the two ends of the first transmission wheel (41).

5. The device for reducing gas emissions from manure storage according to claim 4, characterized in that: Both ends of the first bevel gear (5) are fixedly connected to the second transmission wheel (51), the outer wall of the second transmission wheel (51) is rotatably connected to the inner wall of the fixed frame (4), and the second transmission wheel (51) is transmission-connected to the first transmission wheel (41) via a transmission belt (52).

6. The device for reducing gas emissions from manure storage according to claim 5, characterized in that: A connecting sleeve (151) is installed on the side wall of the fixing sleeve (15), a rotatably connected fixing gear (152) is installed on one end of the connecting sleeve (151), and an outer gear ring (33) is installed on the upper side wall of the main shaft (3) close to the second bevel gear (6).

7. The device for reducing gas emissions from manure storage according to claim 6, characterized in that: The upper end of the second bevel gear (6) is provided with a mounting groove (61), the inner wall of the mounting groove (61) is provided with an inner gear ring (62), the inner gear ring (62) is meshingly connected to the fixed gear (152), and the fixed gear (152) is meshingly connected to the outer gear ring (33).

8. The device for reducing gas emissions from manure storage according to claim 1, characterized in that: A stirring plate (7) is fixedly connected between the side walls of the two fixed frames (4) near the lower ends, and a through groove (71) is formed on the stirring plate (7). A plurality of driven stirring rollers (72) are rotatably connected to the inner wall of the through groove (71), and a pH meter (8) is installed below one of the stirring plates (7).

9. The device for reducing gas emissions from manure storage according to claim 8, characterized in that: A temperature and humidity sensor (17) is installed on the inner wall of the storage tank (1), and an intelligent controller (18) is installed on the outer wall of the storage tank (1). The intelligent controller (18) collects measurement data of the temperature and humidity sensor (17) and the acid-base meter (8) through a wireless transmission module.

Images